G Series

The RESULTS are in, HeatMasterss G Series has the highest efficiency rating in the industry. Many new innovative features make the new G Series line of furnaces the easiest to operate, longest lasting and highest performing in all real world applications.

Rotate the furnace with the controls above

Four Reasons to Choose
a HeatMasterss Furnace

Easy to Use

Cruise Control for Your Boiler

The G Series is the only outdoor furnace that measures the exhaust and adjusts the air to guarantee the best real world performance and efficiency.

Stay Clean & Safe While Loading

The Smokeless Loading Handle turns on the fan and vacuums the smoke up the chimney and away from you while loading.

Simplified Cleaning & Maintenance

No brushes, scrapers, chains or tools needed to clean your heat exchangers! The EZ Clean Handle makes quick and easy work of cleaning the heat exchange tubes.

Stay Out of the Weather with Indoor Installation

Most furnaces can only be installed outdoors. The G Series is also UL listed and CSA approved for installation in a garage, shop or other outbuilding.

Optimal performance in all places and at all times.

hs easy to use

Saves You Money

Industry Leading Efficiency

The G Series continues to be a leader in innovation with the highest efficiency ratings on the market, according to rigorous 3rd party testing. Using less wood means less loading, more heat!

Greater Heating Capacity & Longer Burn Times

A larger firebox gives 20-40% more heating capacity for the same price or much longer burn times.

Achieve Energy Independence

Take control of your family’s budget and eliminate your heating bill with clean burning wood heat. Fossil fuel prices fluctuate but wood heat is consistently economical.

Extend Your Heating Season to Reduce Energy Costs

The new G Series can adjust its BTU output during periods of low heat demand while maintaining efficiency and reducing fuel requirements. Enjoy unlimited domestic hot water year-round or add a hot tub or pool.

Save Time, Labor & Money

Our patented Tornado Combustion Chamber (Patent Pending) provides a cleaner, more complete combustion, reducing fuel costs and your time and effort preparing the fuel, loading. and cleaning the furnace.

 

Built to Last

Designed with a Purpose

Our in-house team of expert engineers design every aspect of our furnaces to achieve maximum performance and longevity in real world applications. From the water jacket to the wiring, the G Series is fabricated to be the longest lasting, most rugged furnace available.

Best-In-Industry Lifetime Limited Warranty

We back each furnace with our best-in-industry Lifetime Limited Warranty, twice as long as the leading mild steel competitor.

Titanium Enhanced 409 Stainless Steel
  • Resists Corrosion
  • Withstands Higher Continuous Temperatures
  • Transfers More Heat
  • Doesn’t Crack or Warp
Rigorous Testing and Quality Control

Our ISO 9001 Certified Manufacturing Processes, extensive field testing and ongoing quality control checks mean world class consistency in every furnace we build.

The HeatMasterSS Advantage

A Network of Dealers Committed to You

From expert advice, to installation, to after sale service, our network of highly trained, qualified and professional dealers are at your service whenever you need them.

A Commitment to Family

When you purchase your HeatMasterss furnace, you join an extended family of employees, owners and dealers across North America.

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EZ Clean Handle

Cleans heat exchange tubes quickly and easily. No brushes or tools required.

Smokeless Loading Handle

Vents heat, flame and smoke out of the chimney while loading. Approved for indoor installations.

Home Monitoring

Check on your furnace from any device on your home network.

Ultra Efficient Heat
Exchanger

Designed with the perfect size and quantity of heat exchange tubes to match the BTU output of the furnace. The spiral turbulators create a vortex which spins the hot exhaust causing friction with the tube walls. This results in greater, more efficient heat transfer to the water.

Insulated Hinged Rear Door

Intentional design creates convenient access to plumbing, fan motor and electrical components.

Recirculation Pump

Water temperature is kept consistent from top to bottom creating a greater heat storage capacity and shorter recovery times during periods of high heat demand.

New
Cruise Control for Your Furnace

Oxygen and fuel (smoke) are precisely mixed to achieve the desired BTU output while maximizing performance and reducing emissions in all conditions.

New
Large Capacity Firebox

With a larger firebox, the G Series can heat a greater area while increasing time between loading the furnace. The full refractory floor provides consistent heat from corner to corner so the wood burns consistently and doesn’t “bridge” or hang up.

New
Tornado Combustion Chamber

Patent Pending
The longer chamber swirls the hot air in a tight spiral, meaning a more complete combustion resulting in higher efficiency, lower emissions and reduced fuel consumption.

New
Spray Foam Insulation

Minimize heat loss thanks to closed cell spray foam that provides a seamless, dense insulation with an outstanding R-value, forming an effective air barrier.

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EZ Clean Handle

Cleans heat exchange tubes quickly and easily. No brushes or tools required.

Smokeless Loading Handle

Vents heat, flame and smoke out of the chimney while loading. Approved for indoor installations.

Home Monitoring

Check on your furnace from any device on your home network.

Ultra Efficient Heat
Exchanger

Designed with the perfect size and quantity of heat exchange tubes to match the BTU output of the furnace. The spiral turbulators create a vortex which spins the hot exhaust causing friction with the tube walls. This results in greater, more efficient heat transfer to the water.

Insulated Hinged Rear Door

Intentional design creates convenient access to plumbing, fan motor and electrical components.

Recirculation Pump

Water temperature is kept consistent from top to bottom creating a greater heat storage capacity and shorter recovery times during periods of high heat demand.

New
Cruise Control for Your Furnace

Oxygen and fuel (smoke) are precisely mixed to achieve the desired BTU output while maximizing performance and reducing emissions in all conditions.

New
Large Capacity Firebox

With a larger firebox, the G Series can heat a greater area while increasing time between loading the furnace. The full refractory floor provides consistent heat from corner to corner so the wood burns consistently and doesn’t “bridge” or hang up.

New
Tornado Combustion Chamber

Patent Pending
The longer chamber swirls the hot air in a tight spiral, meaning a more complete combustion resulting in higher efficiency, lower emissions and reduced fuel consumption.

New
Spray Foam Insulation

Minimize heat loss thanks to closed cell spray foam that provides a seamless, dense insulation with an outstanding R-value, forming an effective air barrier.

Models

G4000

The G4000 is the perfect marriage of size, performance and efficiency for heating a single residence or multiple buildings up to 4000 ft2.

G series 4000
  • Approx. Heating Space* 4,000sq. ft.
  • 8 Hour Burn Rate 68,025 BTU/hr
  • Water Capacity (US Gallons) 116 gallons
  • Firebox Volume 8.5 ft3
  • Recommended Wood Length 18-20"
  • Firebox Dimensions (L” x W” x H”) 23" x 22" x 29"
  • Firebox Door 20" x 20"
  • Weight 1,448 lbs
  • Outlets 1 set of 1” and 1 set 1.5"
  • Chimney Size 6”
  • Dimensions*** (L” x W” x H”) 59" x 42" x 92"
*Well-insulated building. **BTU’s are approximate and will vary depending on fuel quality. *** Height of the furnace is to the top of the lift hook
G7000

The G7000 was purposely designed for larger applications and multiple structures.  A larger firebox gives greater heating capacity and long burn times for buildings up to 7,000 ft2.

HeatMasterSS G7000 wood burning furnace
  • Approx. Heating Space* 7,000 sq. ft.
  • 8 Hour Burn Rate 129,866 BTU/hr
  • Water Capacity (US Gallons) 234 gallons
  • Firebox Volume 16.5 ft3
  • Recommended Wood Length 20-24"
  • Firebox Dimensions (L” x W” x H”) 29" x 29" x 33.5"
  • Firebox Door 20" x 20"
  • Weight 2,035 lbs
  • Outlets 1 sets of 1” and 1 set 1.5"
  • Chimney Size 6”
  • Dimensions*** (L” x W” x H”) 69" x 50" x 83"
*Well-insulated building. **BTU’s are approximate and will vary depending on fuel quality. *** Height of the furnace is to the top of the lift hook
G10000

The G10000 was purposely designed for larger applications and multiple structures.  A larger firebox gives greater heating capacity and long burn times for buildings up to 10,000 ft2.

g7000 alpha small
  • Approx. Heating Space* 10,000 sq. ft.
  • 8 Hour Burn Rate 194,946 BTU/hr
  • Water Capacity (US Gallons) 274 gallons
  • Firebox Volume 23.6 ft6
  • Recommended Wood Length 20-24"
  • Firebox Dimensions (L” x W” x H”) 42" x 29" x 33.5"
  • Firebox Door 20" x 20"
  • Weight 2,564 lbs
  • Outlets 2 pairs 1.5"
  • Chimney Size 6”
  • Dimensions*** (L” x W” x H”) 81" x 50" x 83"
*Well-insulated building. **BTU’s are approximate and will vary depending on fuel quality. *** Height of the furnace is to the top of the lift hook
Furnace guy

Financing

  • Make your purchase right away and be ready for winter
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  • No hidden fees and no penalty for early payment

To Apply, Talk to Your Local Dealer

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